MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202641025048 A) filed by Vellore Institute Of Technology, Vellore, Tamil Nadu, on March 3, for 'a fog-resilient free-space optical (fso) communication system configured to maintain stable optical data transmission under varying atmospheric visibility conditions.'
Inventor(s) include Sharvika S; Abinaya S; Apoorva Misra; Indu B; and Subhra Sankha Sarma.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a fog-resilient free-space optical (FSO) communication system is disclosed for maintaining stable and reliable optical data transmission under varying atmospheric visibility conditions. the system comprises an optical transmitter, a free-space propagation channel affected by fog-induced attenuation, and an optical receiver configured to measure received optical signal power and visibility parameters. an adaptive modulation controller, operatively coupled to the transmitter and receiver, incorporates a machine- learning prediction engine implemented using an Extreme Gradient Boosting (XGBoost) model trained on visibility and received power datasets. based on predicted channel degradation, the controller dynamically selects an optimal modulation format from M-ary pulse position modulation (M-PPM), M-ary quadrature amplitude modulation (M-QAM), or a hybrid M-PPM-QAM scheme. the hybrid modulation is generated through a continuously adjustable weighting factor that allocates power between PPM and QAM components to minimize bit error rate while maintaining spectral efficiency and transmission reliability. the controller operates in real time and may be implemented using programmable signal processors, FPGA platforms, or embedded communication controllers."
Disclaimer: Curated by HT Syndication.
